Running a tcpdump container as a sidecar on ROSA/OSD/ARO clusters

Solution Verified - Updated -

Issue

  • Sometimes it is useful to gather pcaps from the pods of running applications / APIs, but, generally, the images used do not include these networking tools. This tcpdump procedure will capture network details for a running application pod without needing to re-build images.

Environment

  • Red Hat OpenShift Service on AWS (ROSA)
    • 4
  • Red Hat OpenShift Dedicated (OSD)
    • 4
  • Azure Red Hat OpenShift (ARO)
    • 4

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